<?php return array (
  0 => 
  array (
    'username' => '小明',
    'content' => '啦啦啦',
    'create_time' => 1456789034,
  ),
  1 => 
  array (
    'username' => '对对对',
    'content' => '对对对',
    'create_time' => 1488987311,
  ),
  2 => 
  array (
    'username' => '对对对',
    'content' => '对对对',
    'create_time' => 1488987318,
  ),
  3 => 
  array (
    'username' => '巴拉巴拉',
    'content' => '巴拉巴拉',
    'create_time' => 1488987328,
  ),
  4 => 
  array (
    'username' => '0',
    'content' => '0',
    'create_time' => 1489017997,
  ),
) ?>